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Modular test plug adapter
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Patent number D298932
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Issue date Dec 13, 1988
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The Siemon Company
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Robert H. Knickerbocker
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D13 - Equipment for production, distribution, or transformation of energy
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Modular test plug adapter
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Patent number D290249
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Issue date Jun 9, 1987
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The Siemon Company
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Robert H. Knickerbocker
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D13 - Equipment for production, distribution, or transformation of energy
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Conductor insertion tool
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Patent number 4,656,725
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Issue date Apr 14, 1987
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The Siemon Company
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Robert H. Knickerbocker
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H01 - BASIC ELECTRIC ELEMENTS
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Eight conductor modular plug
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Patent number 4,626,057
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Issue date Dec 2, 1986
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The Siemon Company
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Robert H. Knickerbocker
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H01 - BASIC ELECTRIC ELEMENTS
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Modular test plug adapter
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Patent number 4,585,290
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Issue date Apr 29, 1986
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The Siemon Company
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Robert H. Knickerbocker
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G01 - MEASURING TESTING
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Modular connecting blocks
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Patent number 4,580,864
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Issue date Apr 8, 1986
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The Siemon Company
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Robert H. Knickerbocker
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H01 - BASIC ELECTRIC ELEMENTS
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Wire installing tool
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Patent number 4,306,349
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Issue date Dec 22, 1981
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The Siemon Company
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Robert H. Knickerbocker
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H01 - BASIC ELECTRIC ELEMENTS
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Electrical circuit tester
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Patent number 4,293,174
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Issue date Oct 6, 1981
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The Siemon Company
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Robert H. Knickerbocker
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G01 - MEASURING TESTING
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Circuit testing connector head
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Patent number D257034
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Issue date Sep 23, 1980
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The Siemon Company
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Robert H. Knickerbocker
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D13 - Equipment for production, distribution, or transformation of energy
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Wire installing tool
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Patent number 4,194,256
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Issue date Mar 25, 1980
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The Siemon Company
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Robert H. Knickerbocker
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H01 - BASIC ELECTRIC ELEMENTS
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Matrix terminal block
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Patent number 4,152,749
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Issue date May 1, 1979
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The Siemon Company
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Robert H. Knickerbocker
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G11 - INFORMATION STORAGE
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